The invention relates to a road adhesion coefficient determination method. The method comprises the following steps: according to a three-degree-of-freedom vehicle model and a tire model of a target vehicle, determining utilization adhesion coefficients corresponding to a plurality of time points of each tire of the target vehicle on a to-be-measured road surface, and according to the vehicle speed of the target vehicle, the angular velocity of each tire and the radius of each tire, determining a slip rate corresponding to each tire at each time point, and determining the pavement adhesion coefficient of each tire on the pavement to be measured according to the utilization adhesion coefficient and slip rate corresponding to each tire at each time point. By adopting the method, the accuracy of the determined road adhesion coefficient of the tire of the target vehicle on the to-be-measured road can be improved.

    本申请涉及一种路面附着系数确定方法。所述方法包括:根据目标车辆的三自由度车辆模型与轮胎模型,确定目标车辆的各轮胎在待测路面上的多个时间点对应的利用附着系数,根据目标车辆的车速、各轮胎的角速度和轮胎半径,确定各轮胎在各时间点对应的滑移率,根据各轮胎在各时间点对应的利用附着系数和滑移率,确定各轮胎在待测路面上的路面附着系数。采用本方法能够提高确定出的目标车辆的轮胎在待测路面上的路面附着系数的准确性。


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    Title :

    Road adhesion coefficient determination method


    Additional title:

    路面附着系数确定方法


    Contributors:
    GONG XINLE (author) / HUANG JIN (author) / ZHONG ZHIHUA (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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